학술논문
Neutron spectroscopy in inertial confinement fusion experiments using the DEMIN spectrometer
Document Type
Conference
Source
2009 1st International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2009 First International Conference on. :1-5 Jun, 2009
Subject
Language
Abstract
A neutron diagnostic has been designed to achieve high energy neutron spectroscopy in large γ background. The concept of this diagnostic is based on the association of a Micromegas detector with a neutron-to-charged particle converter. Electrons produced by γ-rays go through the Micromegas with a low ionization probability, making the detector γ-rays insensitive. This low γ sensitivity makes this concept appealing for inertial confinement fusion experiments. The good time resolution of the apparatus allows the reconstruction of neutron energy spectra with the time-of-flight technique. We plan to use such spectrometer on future high power laser installation (Laser MegaJoule in France or National Ignition facility in USA).